Rules

Good!
Effectively there is only one thing to respect and to commit yourself to:

"I will learn and prepare for an exam for at least an hour every day for the next 100 days."

This is your main commitment a.k.a. Rule #1

Additional Rules

I will tweet about my progress every day.
Using the hashtag #100DaysOfExam.

I will update the Log with the day's progress and provide a link so that others can see my progress.

I will prepare for a real exam. Specify your goal in the title of your log file to keep it in eyesight.

Ideas to make this challenge more effective

To increase the chances of success, it shall be a constraint that you add at least one resource to your day's progress in the log. It can be a link to a tutorial, a video or any other resource that helped you to prepare for your exam.

Another good bonus would be to fork the repository. If you haven't worked with Markdown before, it's a good way to practice.